1 /*
2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "render/rs_blur_filter.h"
17
18 #include "include/effects/SkBlurImageFilter.h"
19 namespace OHOS {
20 namespace Rosen {
RSBlurFilter(float blurRadiusX,float blurRadiusY)21 RSBlurFilter::RSBlurFilter(float blurRadiusX, float blurRadiusY): RSSkiaFilter(SkBlurImageFilter::Make(blurRadiusX,
22 blurRadiusY, nullptr, nullptr, SkBlurImageFilter::kClamp_TileMode)), blurRadiusX_(blurRadiusX),
23 blurRadiusY_(blurRadiusY)
24 {
25 type_ = FilterType::BLUR;
26 }
27
~RSBlurFilter()28 RSBlurFilter::~RSBlurFilter() {}
29
GetBlurRadiusX()30 float RSBlurFilter::GetBlurRadiusX()
31 {
32 return blurRadiusX_;
33 }
34
GetBlurRadiusY()35 float RSBlurFilter::GetBlurRadiusY()
36 {
37 return blurRadiusY_;
38 }
39
Add(const std::shared_ptr<RSFilter> & rhs)40 std::shared_ptr<RSFilter> RSBlurFilter::Add(const std::shared_ptr<RSFilter>& rhs)
41 {
42 if ((rhs == nullptr) || (rhs->GetFilterType() != FilterType::BLUR)) {
43 return shared_from_this();
44 }
45 auto blurR = std::static_pointer_cast<RSBlurFilter>(rhs);
46 return std::make_shared<RSBlurFilter>(blurRadiusX_ + blurR->GetBlurRadiusX(),
47 blurRadiusY_ + blurR->GetBlurRadiusY());
48 }
49
Sub(const std::shared_ptr<RSFilter> & rhs)50 std::shared_ptr<RSFilter> RSBlurFilter::Sub(const std::shared_ptr<RSFilter>& rhs)
51 {
52 if ((rhs == nullptr) || (rhs->GetFilterType() != FilterType::BLUR)) {
53 return shared_from_this();
54 }
55 auto blurR = std::static_pointer_cast<RSBlurFilter>(rhs);
56 return std::make_shared<RSBlurFilter>(blurRadiusX_ - blurR->GetBlurRadiusX(),
57 blurRadiusY_ - blurR->GetBlurRadiusY());
58 }
59
Multiply(float rhs)60 std::shared_ptr<RSFilter> RSBlurFilter::Multiply(float rhs)
61 {
62 return std::make_shared<RSBlurFilter>(blurRadiusX_ * rhs, blurRadiusY_ * rhs);
63 }
64
Negate()65 std::shared_ptr<RSFilter> RSBlurFilter::Negate()
66 {
67 return std::make_shared<RSBlurFilter>(-blurRadiusX_, -blurRadiusY_);
68 }
69 } // namespace Rosen
70 } // namespace OHOS
71